Topic: SWIMMING
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life‧sav‧er
[countable]
[countable]1 someone or something that helps you avoid a difficult or unpleasant situation : A microwave oven can be a real lifesaver when you're pressed for time.
A microwave oven can be a real lifesaver when you're pressed for time.2 someone or something that prevents you from dying : The seatbelt is the biggest single lifesaver in cars.
The seatbelt is the biggest single lifesaver in cars.3DSS a life guard
